Семит әріптерінің тоғызыншы әрпі - Тет

Ninth letter of many Semitic abjads
the Semitic letter

Teth, also written as or Tet, is the ninth letter of the Semitic abjads, including Phoenician ṭēt 𐤈, Proto semitic tē , Hebrew
ṭēt ט, Aramaic ṭēṯ 𐡈, Syriac ṭēṯ ܛ, and Arabic ṭāʾ ط. It is the 16th letter of the modern Arabic alphabet. The Persian ṭa is pronounced as a hard "t" sound and is the 19th letter in the modern Persian alphabet. The Phoenician letter also gave rise to the Greek theta (Θ), originally an aspirated voiceless dental stop but now used for the voiceless dental fricative. The Arabic letter (ط) is sometimes transliterated as Tah in English, for example in Arabic script in Unicode. The sound value of Teth is , one of the Semitic emphatic consonants.

The letter is named طَاءْ; Modern Standard Arabic pronunciation: .

In Modern Hebrew, Tet represents a voiceless alveolar plosive , and is therefore usually homophonic with the abjad's final letter, Tav ת. However, Tet can be pharyngealized to produce in traditional Temani and Sephardi pronunciation. [tˤ] is also probably the pronunciation in Biblical Hebrew.

In gematria, Tet represents the number nine. When followed by an apostrophe, it means 9,000. The most common example of this usage is in the numbers of the Hebrew years (e. g., ט'תשנד in numbers would be the date 9754). As well, in gematria, the number 15 is written with Tet and Vav, (9+6) to avoid the normal construction Yud and Hei (10+5) which spells a name of God. Similarly, 16 is written with Tet and Zayin (9+7) instead of Yud and Vav (10+6) to avoid spelling part of the Tetragrammaton. Tet is also one of the seven letters which receive special crowns (called tagin) when written in a Sefer Torah. See Shin, Ayin, Gimmel, Nun, Zayin, and Tzadi.

A symbol similar to the Phoenician teth is used for the tensor product, as , but this is presumably an independent development, by modification of the multiplication sign ×. The Hebrew ט is also visually similar to the letter Ʋ.